Fox farms bloom>>>>need help

Hello from nor cal....Ive been using the GROW BIG....My LADIES are lookin GREAT!!....but theyve been flowering now for couple weeks....went to rec.mnd dose for the fox farms BLOOM......there outdoors and over 2 mos. Been told that it's o early...but BLOOM says use on first site of flowering.....I waited a couple weeks.....thanks for any help....

How long have they been in those pots?
Have they used up all the food in the soil yet?
They look healthy so i would start off light.
You want to let the roots fill the pot. And use the food in the soil.
Before you feed them.
I follow foxfarm feeding schedule. Its on there website.
I start it ussually second weak of flower.